condition mean min max ZT0-3 0.016234075 0.0160444 0.01642375 ZT4-7 0.08150605 0.08150605 0.08150605 ZT8-11 0.08171334999999999 0.08171334999999999 0.08171334999999999 ZT12-15 0 0 0 ZT16-19 0.032324149999999996 0.032324149999999996 0.032324149999999996 ZT20-23 0.0 0.0 0.0